Adjustable armrest
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Solution Overview
Problem
Conventional armrests exhibit excessive movement when a user places their hand on them, causing inconvenience due to their high degree of free movement, which is not adequately addressed by existing designs.
Innovation Solution
An adjustable armrest design featuring a post and an armrest body with a sliding member having a non-circular contour, a track with interconnected sections, and a buffering member, allowing for controlled movement and pivoting to support the user's elbow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the armrest is designed with high degree of free movement (slidable and pivotable), then adaptability is improved, but stability deteriorates causing unexpected movement when user places hand on armrest
Solution Approach 1:
The armrest employs a dynamic design with multiple degrees of freedom, allowing it to slide along the post and pivot at the connection point. This dynamic structure adapts to different user positions and preferences while maintaining stability through controlled movement ranges defined by the guide hole and slot geometry
Solution Approach 2:
The connection structure acts as an intermediary mechanism between the fixed post and the movable armrest body. The guide hole and slot combination provides a controlled interface that allows necessary movement while preventing excessive or unstable motion, effectively mediating between adaptability and stability requirements
2Ease of operation
If the armrest allows slidable and pivotable movement, then ease of operation is improved, but reliability deteriorates due to unexpected movement when force is applied
Solution Approach 1:
The armrest is designed with controlled dynamic movement capabilities, allowing users to easily adjust position and angle while the guide hole and slot structure ensures that movements remain within predictable and reliable ranges, preventing unexpected or erratic behavior
Solution Approach 2:
The guide hole and slot configuration预先 (in advance) constrains the possible movement paths of the armrest, preventing unexpected movements before they can occur. The geometry of these guiding features establishes predetermined movement boundaries that ensure reliable and predictable operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enables controlled movement and pivoting of the armrest, reducing unexpected movement and providing better support for the user's elbow, thus enhancing usability.
Implementation Method 1
a resilient washer
Data Source
AI summary
An adjustable armrest includes a post and an armrest body. A sliding member is coupled to the post and has a non-circular contour on a horizontal plane. The armrest body receives a sliding seat. The sliding seat includes a track extending in a length direction. The sliding member is received in the track. The armrest body is movable relative to the post. The track includes a first section and a second section interconnected to the first section. The first and second sections are arranged in the length direction. The first section extends along a rectilinear line. The second section extends along a non-rectilinear line.